Engine



Dec. 13, 1932.l

warf

WWW

J. KEMPTHORNE 1,890,611

ENGINE Filed Apl 1, 1931 /lL /5 /Zo /3 29 2% i* @5 ,33 ,22. a 2f Lf* ze* 20 @ZI v V f I j O V Z/I/fx 3] /J/ 52 INVENTOR S JAMES I. K EMI'PTHOBNE, 0F

oNTeLam. NEW JERSEY ENGINE.

Appunti med Pm l 419,31. Serial No. $28.813. /f/" f f This invention relaties to an engine adapted for use as a prime mover or as an engine for pumping or compressing purposes.-

The engine is an improvement in the type of engine illustrated and described in. my application for Letters Patent filed November/4 25, 1930, Serial Number 497 ,780.

The objectof the invention is to provide an engine in which the compressing member or D element which is rotary with a'n inclined face can be controlled without stopping the engine. This control'enables the volume or capacity of the pump to be changed at lwill or automatically. This control ladapts the en-` gine to manywarious uses such as controlling the speed of motors in vehicles propellgd by a fluid drive. Other various uses4 ca'n be `found for an engine controlled as this one is by changing the position of the rotary mem- 5 3 ber in its inclination relative to the shaft with which it rotates. The invention is illustrated in the accom-` panying drawing in which Figure 1 is a vertical longitudinal section of the engine, the. E" shaft and its' associated parts being shown in elevation. Figure 2 is anend vlew of the rotary member and a ring in which it is journalled, he Aring and the drive yshaft being shown inelevation.

. 39 The engine illustrated comprises a casing 10 usuall made in halves joined atthe central part m line with the axis of the shaft and held together by bolts 11. The casing has u inlet ports 12 and outlet ports 13,430 which j 2J proper pipe connections can be made. The'- casing has a spherical opening 5 14 in which is a rotary member 15 having a face inclined limth'e axis of rotation of the shaft 16 with l 'which it rotates. The outer part of the rotary [-3 memberis a face plate 17 which does not rotate but gyiatesor wobbles. The plate has a sealingstrip 18 which ts into -arecess across the centre of an abutment 19. The abutment 'u is held against rotation but can oscillate hori-.. J zontally under the influence ofthe changing angle of the face plate- 17 of the rotary member. The abutment is mounted in an oscillatory member such as the-ring20fmovable 1n a'circular recess 21 in the Vside of thespherr -ical opening and is secured thereto; as by screws 22. The ring also 'serves to journal the sealing strip 18 which has its end 23 j ournalled in therig 20. The abutment 19 has converging vfaces 24 with which the face of the /plat'e 17 co-operates tocompress first in 55' the upper chamber and then in the lower chamber as the rotary member 15'is rotated by the shaft. f

It will b'e evident that if the faceV .of the faceplate 17 was not at an angle to the axis 90 of rotation it would have no 'compressing power. In-other words, it would be at zero on pressure developed. Y-As the angle increases the power or pressure increases -assuming no change in speed. v 65 'I have therefore devlsed a. means for changing the angle of the rotary member.

The shaft has a laterall projecting shoe-25 secured to the shaft as ya screw 26. The shoe fits in a recess 27 in the rotary member 7 and thereby also acts as a key ,to insure the rotation of the parts in unison.'4 The wall 28 of recess- 27 can be directly engaged by the shoe but I prefer to interpose a roller or ball 29A to make the movement smoother. The 75 roller 29 and a plate 30 against which it 4bears can be made of hardened steel .as can also the shoe 25 and therefore have long life vwithout the necessity of replacement. The pressure is always delivered. y the advanced half ef the B0 rotary-'member and this keeps' the co-openating parts of the member and shaft in contact.

The shaft 16 is movable longitudinally and l show as a` means for moving it, the lever 31, pivoted at 32 and operating the colla'r 33 onv the shaft.l A pulley 34 is illustrated as means for driving. the shaft. j

When the shaft is pushed in the inclination of the rotary member relative to the shaft is 9 increased and the full capacity .of the pum is exercised. When the shaft is drawn bac bthe rotary member is allowed to straighten up and the angle of its face relative to the axis lbecornesless acute and the capacity of the pump is changed without necessitating anly change in speed of the pump. v

Various changes can be made in` the 'proportions and'shape of che4 parts without depart-L ing from the scope of the invention. l 10 Iclaim:

1. An engine comprising a casing having a spherical opening therein, an abutment in one half the opening and havingr substantial- 5 vly flat faces converging toward the centre of the opening, a ring arranged at the circum- 1 ference 0f the opening and to which the abutment is secured wherebv th' r'ng and abutment may oscillate together. a plate adapted to both rock and rotate. a Sealing strip fitting between the centre line of the plate and the central line of the abutment. a' rotarvmember in rear of the plate, a shaft for rotating the rotary member. and a connection be- 5 tween the shaft and the rotary member for varyins.r the angle of the member relative to the shaft.

2. An engine comprising a casing hav'ng a spherical opening therein. an abutment in zo one half UIC Willing Stanmlly at fates converging toward the cntreoftheopeningaringarrnngedatthe ferenvepflheopeninandtOWhl'h ab fment 1S I W wat c 'i nrlfmip 

